Browse all Entries, Images, Videos, and Audio Files in the Civil War Military Units category.
Army of Kentucky (CSA)
August 26 – November 20, 1862 Organized by Major General Kirby Smith from soldiers of the Department of East Tennessee, the short-lived Confederate Army of Kentucky participated in the Confederate Heartland Campaign of 1862. On February 25, 1862, the Confederate War Department issued Special Orders, Number 45 placing Major General Kirby Smith in charge of…
Army of Kentucky (USA)
1862–1863 Formed on October 7, 1862, the Army of Kentucky served for eight months in the states of Kentucky and Tennessee, before being disbanded on June 8, 1863. On October 7, 1862, Major General Horatio Wright, commanding the Department of the Ohio, issued Special Order No. 51, assigning Major General Gordon Granger to command the…
Army of Mississippi (CSA)
March 5–November 20, 1862
Army of Northeastern Virginia
May 27, 1861–July 25, 1862 The Army of Northeastern Virginia was the unofficial name of the Union's primary fighting force in the Eastern Theater of the American Civil War prior to the formation of the Army of the Potomac. At 4:30 a.m., April 12, 1861, Confederate forces began shelling the federal garrison at Fort Sumter,…
Army of Southwest Missouri
December 25, 1861 – December 13, 1862
Army of the Cumberland
October 24, 1862–August 1, 1865 During the American Civil War, the Army of the Cumberland participated in nearly all of the major campaigns in the Western Theater. On April 15, 1861, one day after the surrender of Fort Sumter propelled the nation into civil war, President Abraham Lincoln issued a proclamation calling for seventy-five thousand…
Army of the Frontier
October 12, 1862 – October 19, 1863 Formed from forces in the field from Missouri and Kansas the short-lived Army of the Frontier fought to maintain Union control of Missouri during 1862 and 1863. When the American Civil War began, sympathies in the border state of Missouri were greatly divided. Although many Missourians favored remaining…
Army of the Gulf
1862–1865 An amalgamation of troops assigned to the Department of the Gulf from 1862 through 1865, the Army of the Gulf served as an occupation force in New Orleans (1862-1863) and as the main Union command during the Red River Campaign during the American Civil War. On February 23, 1862, the United States War Department…
Army of the James
1864–1865 During the American Civil War, Lieutenant General Ulysses S. Grant consolidated troops from the Department of Virginia and North Carolina to form the Army of the James to support his Overland Campaign in 1864. On July 15, 1863, the United States War Department issued General Orders No. 217, combining the Department of Virginia with…
Army of the Mississippi (CSA)
March 5–November 20, 1862 Officially organized on March 5, 1862, the Army of the Mississippi transitioned into the Army of Tennessee, the Confederacy's preeminent fighting force in the Western Theater of the American Civil War. Origins of the Army of the Mississippi Although not officially organized until March 5, 1862, the roots of the Army…